Shuttle



1 Application filed J'nly 21,

Patented June 16, 1925.

UNITED-STATES PATENT OFFICE.

RALPH L. GREENE, ATTLEBTQRO, MASSACHUSETTS, ASSIGNOR TO SHAMBOW SHUT- TLE COMPANY, OF WQONESQGKET, BJEIOIDE ISLAND, A, CORPORATION OF RHODE ISLAND.

SHUTTLE.

T0 aZZ w/mm it may concern:

Be it known that I, RALP L. GREENE, a citizen of the United States, residing at Attleboro, in the county of Bristol and Stateof Massachusetts, have invented cer tain new and useful Improvements in Shuttles; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled. in the art to which it appertains to make and use the same.

The present invention relates to an im provement in shuttles, and more particularly to the springs used in weft replenishing loom shuttles.

The object of the invention is to reorganize and improve shuttles with respect to the support of the springs in the shuttle body. To the above end the present invention consists in the shuttle hereinafter described and particularly defined in the claim.

In the accompanying drawings illustrat ing the preferred form of the invention, Fig. 1 is a plan of a portion of a shuttle for a loom of the bobbin changing type,

illustrating the spring construction; Fig.

2 a sectional elevation of the same; and Fig. 8 is a horizontal section taken on the line 3-3 of Fig. 2.

The illustrated embodiment of the invention is described as follows: The shuttle body 10 has the usual bobbin receiving rerose 11. The shuttle spring 12 is of the usual form, having arms 13 adapted to en gage the opposite sides of the butt of the bobbin. The shuttle spring is of the usual form, having a U-shaped portion 14 which unites the ends of the arms embracing a spacing piece 15, through which U-shaped portion and spacing piece the bolt 16 passes to secure it in place in the shuttle body. The shuttle is provided with the usual bobbin guide 17, which consists of a piece of metal. having an inclined portion which serves when the bobbin strikes it to guide the bobbin butt down and to move it longitudinally of the shuttle so as to bring it into proper position to be forced between the arms 13 of the spring. Integral wlth the bobbin guide is the bottom plate 18 which is received in a groove in the body of the shuttle and extends under both arms rearwardly, tapering until it reaches the corners 19 of the recess in .the

192 Serial at. 727,141.

shuttle body, then extending on in parallel lines to a point beyond the end of the clouble portion of the spring, as shown in dotted lines in Fig. 3. a This bottom plate is of the usual construction. A filler plate 21 is provided which is received in a groove cutin the body of the shuttle, which has two arms extending outwardly on top of the arms of the spring, and a body portion which extends rearwardly into a slot cut in the shuttle body, as shown in full lines in Fig. The top plate of the bobbin guide is a horizontal strip of metal 22, which'extends rearwardly from the top of the inclined portion over the upper surface of the filler plate, being received in a recess cut in the shuttle body and having its ends secured in place by a wood screw 23. The top plate of the bobbin guide is of the usual construction. The filler plate is provided with a rectangular recess 24 which receives the upper end of the inclined portion of the bobbin guide, as shown in Fig. 3. The length of the recess is equal to the width of the inclined portion of the bobbin guide, and the filler plate and bobbin guide are thereby interlocked.

lVhen a transfer takes place in a weft replenishing loom employing shuttles of this type, the butt of the bobbin is designed to enter between the ends of the arms of the shuttle spring, and as it enters to force out ahead of it the exhausted bobbin. It sometimes happens that the shuttle is not quite correctly positioned in the. shuttle box to receive the incoming bobbin. The design is such that an error in the positioning of the shuttle in the shuttle box under the hopper will never be too far to the left, as viewed in the drawings. If the shuttle should come to rest in a position too far to the left, the transfer would be arrested by the shuttle feeler mechanism, so that errors in positioning the shuttle are always on one side, that is to say, always such that the shuttle is slightly too far in the shuttle box, as a result of which when the transfer takes place, the butt of the bobbin strikes the incline of the bobbin guide and moves the shuttle to the left, (or it sometimes happens that it is itself moved to the right,) so as to bring the butt of the bobbin into register with the ends of the shuttle spring arms. This blow of the bobbin on the shuttle springs and bobbin guide racks the connection between the arms and the shuttle. Sometimes it tends to move the spring bodily to one side or the other, and this tendency in turn is transmitted to thebobbin guide. 'I-Ieretofore the filler plate has been more or less tree to move laterally by driving its edges into the body of the shuttle, and this movement sometimes becomes so great as to cause one or the other of the horns of the filler plate to impede the entrance of the bobbin into the shuttle. By interlocking the filler plate and bobbin guide together, the Vibrations and strains on the shuttle spring and bobbin guide are distributed over larger sur faces, and the guide and iiller plate are thereby more securely held in position in the shuttle.

Having thus described the invention, What is claimed is:

A shuttle comprising a body provided with a bobbin recess, a shuttle spring and bobbin guide supported in the shuttle body, and a filler plate provided With a recess adapted to embrace the inclined portion oi the bobbin guide so as to interlock the bobbin guide and filler plate and prevent the lateral displacement of the one with relation to the other.

In testimony whereof I have signed my name to this specification.

RALPH L. GREENE. 

